Zenón Díaz

Díaz started playing as goalkeeper for Rosario Central after he was discovered by two club executives who had watched him playing la ronda in the streets. Those executives had been impressed by Díaz's ability to use hands. He debuted as goalkeeper in a match against Rosario A.C. in 1903, which Central lost 2–1. Nevertheless, Díaz did not remain playing as a goalkeeper much longer because he preferred to play in a position where he could run. As a defender, Díaz consolidated as one of the most famous players of his time. Díaz played for Rosario Central from 1903 to 1919, when he retired after a match against the arch-rival Newell's Old Boys on 4 May. Notably, Díaz played the last minutes as goalkeeper, replacing his nephew Octavio Díaz, who had left the field after being injured. Díaz played at least 175 games and scored at least eight goals, winning four national cups and seven regional titles with Rosario Central. Like other players during the amateur era, he also worked at the Central Argentine Railway. Díaz's playing style was based on tough man-marking, and he was known for his slide tackles.

With the Argentina national team, he debuted against the English club Nottingham Forest during their 1905 tour of South America. His last match with Argentina was at the 1916 South American Championship against Uruguay. Díaz was the first Argentine native (non-British origin) player to be capped for the national team.

Rosario Central Copa de Competencia La Nación: 1913 Copa Ibarguren: 1915 Copa de Competencia Jockey Club: 1916 Copa Honor MCBA: 1916 Copa Nicasio Vila (6): 1908, 1914, 1915, 1916, 1917, 1919 Federación Rosarina de Football: 1913 Copa Damas de Caridad: 1910, 1914, 1915, 1916 Argentina Copa Lipton: 1906 Copa Premier Honor Argentino: 1913 Copa Newton: 1916 Copa Premier Honor Uruguayo: 1916